1796789856789 has 12 divisors (see below), whose sum is σ = 2655720409056. Its totient is φ = 1170002697192.

The previous prime is 1796789856749. The next prime is 1796789856821. The reversal of 1796789856789 is 9876589876971.

It is a happy number.

It is not a de Polignac number, because 1796789856789 - 2¹⁶ = 1796789791253 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1796789856699 and 1796789856708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1796789856749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2321433537 + ... + 2321434310.

It is an arithmetic number, because the mean of its divisors is an integer number (221310034088).

Almost surely, 2^{1796789856789} is an apocalyptic number.

It is an amenable number.

1796789856789 is a deficient number, since it is larger than the sum of its proper divisors (858930552267).

1796789856789 is a wasteful number, since it uses less digits than its factorization.

1796789856789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4642867896 (or 4642867893 counting only the distinct ones).

The product of its digits is 23044331520, while the sum is 90.

The spelling of 1796789856789 in words is "one trillion, seven hundred ninety-six billion, seven hundred eighty-nine million, eight hundred fifty-six thousand, seven hundred eighty-nine".